2625205969 has 2 divisors, whose sum is σ = 2625205970. Its totient is φ = 2625205968.

The previous prime is 2625205967. The next prime is 2625205987. The reversal of 2625205969 is 9695025262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1779152400 + 846053569 = 42180^2 + 29087^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625205969 - 2¹ = 2625205967 is a prime.

It is a super-2 number, since 2×2625205969² = 13783412759346457922, which contains 22 as substring.

Together with 2625205967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2625205967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1312602984 + 1312602985.

It is an arithmetic number, because the mean of its divisors is an integer number (1312602985).

Almost surely, 2^2625205969 is an apocalyptic number.

It is an amenable number.

2625205969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2625205969 is an equidigital number, since it uses as much as digits as its factorization.

2625205969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 2625205969 is about 51236.7638419914. The cubic root of 2625205969 is about 1379.4981667932.

The spelling of 2625205969 in words is "two billion, six hundred twenty-five million, two hundred five thousand, nine hundred sixty-nine".